battery light

johnvill73 · 4th June 2012, 14:45

the last week or so my battery light sometimes stays on for about 20/30 seconds then goes off i have just done the obd test after it sitting on my drive for about a hour and it reads 11.9 v does this mean my battery is on its way out

Greeners · 4th June 2012, 14:47

Repeat the test with the engine running, alternator should be putting out 14.7v or there abouts

4th June 2012, 14:45	#1
johnvill73 Avid contributor Rover 75 tourer Join Date: Jan 2008 Location: birmingham Posts: 168 Thanks: 28 Thanked 1 Time in 1 Post	battery light the last week or so my battery light sometimes stays on for about 20/30 seconds then goes off i have just done the obd test after it sitting on my drive for about a hour and it reads 11.9 v does this mean my battery is on its way out

4th June 2012, 14:47	#2
Greeners Moderator MG-ZTT Join Date: Mar 2007 Location: Ware, Herts Posts: 19,798 Thanks: 161 Thanked 1,249 Times in 1,036 Posts	Repeat the test with the engine running, alternator should be putting out 14.7v or there abouts __________________ *David* Impecunity is the mother of ingenuity Useful how to's for common problems Car Of The Month Jan 2014 [SatNav Power Down] [Coolant Level] [SatNav Repair] [Diesel Non Starting] [Paint Codes] [Rear Light Seals] [Reversing Light Switch] [Bleeding Brakes][Sunroof Drain] [Early ZT's][Instrument Pack Diagnostics][ATC Diagnostics]